Device for lifting tilt-up concrete walls with ground control release



FIG. 1 is a perspective view of a device for lifting tilt-up concrete walls with ground control release showing my new design, the broken line illustration of crane hook and concrete wall is for illustrative purposes only;

FIG. 2 is a perspective view of the device releasing the lifting pin from a tilt-up concrete wall;

FIG. 3 is a side elevational view of FIG. 1;

FIG. 4 is a side elevational view of FIG. 2;

FIG. 5 is an end elevational view of FIG. 1;

FIG. 6 is an end elevational view of FIG. 2;

FIG. 7 is a bottom plan view of FIG. 1; and,

FIG. 8 is a bottom plan view of FIG. 2. 

The ornamental design for a device for lifting tilt-up concrete walls with ground control release, as shown and described. 